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$389+ Cheap flights from Seattle (SEA) to London City (LCY)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LCY
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheap flight deals from Seattle to London City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to London City (LCY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 17, 2025.

Round-trip from

$551
(Booking.com)

One-way from

$389
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$697
From Seattle/Tacoma Intl to London City
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One-way flight from Seattle/Tacoma Intl to London City
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Highest demand for flights based on searches. 15% potential increase in price ($138 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Seattle to London City

Cheapest flights from Seattle to London City
Explore the most affordable flight options available from Seattle to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 17, 2025.

This Gurufare deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/143:28 pmSEA - LCY
2 stops18h 02mSWISS
mar. 10/219:25 amLCY - SEA
2 stops17h 11mSWISS
Deal found 9/16$562
This KAYAK deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/43:37 pmSEA - LCY
2 stops17h 28mSWISS
jue. 11/209:15 amLCY - SEA
2 stops22h 00mSWISS
Deal found 9/15$564
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/285:40 pmSEA - LCY
1 stop15h 00mDelta
mar. 10/1410:00 amLCY - SEA
1 stop14h 05mDelta
Deal found 9/17$568
This Virgin Atlantic deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/226:00 amSEA - LCY
2 stops17h 15mVirgin Atlantic
lun. 11/36:55 pmLCY - SEA
1 stop24h 50mVirgin Atlantic
Deal found 9/15$572
This Virgin Atlantic deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/176:00 amSEA - LCY
2 stops17h 15mVirgin Atlantic
mié. 11/265:50 pmLCY - SEA
1 stop25h 55mVirgin Atlantic
Deal found 9/17$573
This Virgin Atlantic deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/142:00 pmSEA - LCY
1 stop19h 20mVirgin Atlantic
mar. 10/219:20 amLCY - SEA
2 stops21h 05mVirgin Atlantic
Deal found 9/14$578
This Virgin Atlantic deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/226:00 amSEA - LCY
2 stops17h 15mVirgin Atlantic
lun. 10/275:50 pmLCY - SEA
2 stops29h 42mVirgin Atlantic
Deal found 9/15$582
This Virgin Atlantic deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/97:20 amSEA - LCY
2 stops15h 55mVirgin Atlantic
mié. 11/199:20 amLCY - SEA
2 stops21h 05mVirgin Atlantic
Deal found 9/16$583
This Trip.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/285:40 pmSEA - LCY
1 stop15h 00mVirgin Atlantic
mar. 10/1410:00 amLCY - SEA
1 stop14h 05mVirgin Atlantic
Deal found 9/16$593
This KAYAK deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/23:28 pmSEA - LCY
2 stops17h 47mSWISS
jue. 10/169:25 amLCY - SEA
2 stops17h 11mSWISS
Deal found 9/15$603
This KAYAK deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/272:40 pmSEA - LCY
2 stops39h 10mSWISS
dom. 11/97:20 pmLCY - SEA
2 stops35h 55mSWISS
Deal found 9/15$614
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/95:40 pmSEA - LCY
1 stop15h 00mDelta
mar. 10/219:20 amLCY - SEA
1 stop14h 45mDelta
Deal found 9/15$618

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to London City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 17, 2025.
Use the filters below to find and compare flights from Seattle to London City Airport that are best for you.

Fly from

Seattle

Fly to

London City

Route

Depart

Return

Price

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

dom. 9/28

5:40 pm-4:40 pm

1 stop15h 00m

London City

mar. 10/14

8:40 am-4:05 pm

1 stop15h 25m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

mar. 11/18

3:00 pm-4:35 pm

1 stop17h 35m

London City

mié. 12/3

10:00 am-11:50 am

1 stop33h 50m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

lun. 10/6

5:40 pm-4:40 pm

1 stop15h 00m

London City

mié. 10/22

8:40 am-4:05 pm

1 stop15h 25m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

mar. 11/18

3:00 pm-4:35 pm

1 stop17h 35m

London City

mar. 12/2

10:00 am-11:50 am

1 stop33h 50m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

mar. 11/18

7:20 am-7:15 am

2 stops15h 55m

London City

mar. 11/25

5:05 pm-11:45 am

1 stop26h 40m

$572

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

lun. 11/17

6:00 am-7:15 am

2 stops17h 15m

London City

mié. 11/26

8:05 pm-11:45 am

1 stop23h 40m

$573

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

vie. 10/17

2:00 pm-11:40 am

1 stop13h 40m

London City

vie. 10/24

9:20 am-4:05 pm

1 stop14h 45m

$618

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

jue. 10/9

5:40 pm-4:40 pm

1 stop15h 00m

London City

mar. 10/14

7:45 am-4:05 pm

1 stop16h 20m

$618

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

jue. 10/2

5:40 pm-4:40 pm

1 stop15h 00m

London City

mar. 10/14

9:20 am-4:05 pm

1 stop14h 45m

$618

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

mar. 11/18

3:00 pm-4:35 pm

1 stop17h 35m

London City

jue. 11/27

8:40 am-11:45 am

1 stop35h 05m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 21 results
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Best time to book a flight from Seattle to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to London City Airport

What is the cheapest time of day to fly from SEA to LCY?

Find hourly flight availability from Seattle to London City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 17, 2025.

When flying from Seattle to London City Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing London City

Get insights into the airlines that provide service to London City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London City. Reviews last updated septiembre 17, 2025.
Get a feel of what it's like to fly with Scandinavian Airlines from Seattle to London City Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,486 reviews

Crew

8.0

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,486 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Crew

8.0

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

Related info for your journey

Find useful and relevant information for your journey from Seattle to London City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to London City?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to London City from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to London City should be relatively easy as there are 0 daily outbound flights to London City from 1 airline.

  • How long is the flight from Seattle to London City Airport?

    A quick flight from Seattle to London City Airport can take about 15h. Delta provides one of the quickest options available for as low as $568. Seattle and London City Airport are separated by a distance of 4794 mi.

  • Can I find deals for flights from Seattle to London City that include hotel bookings?

    Yes. In addition to deals on Seattle to London City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to London City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to London City.

  • Can I find deals for business class flights from Seattle to London City?

    Yes. Cheapflights offers flight deals from Seattle to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to London City Airport?

    Currently, April is the cheapest month in which you can book a flight from Seattle to London City Airport (average of $686). Flying from Seattle to London City Airport in July is currently the most expensive (average of $1,046). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Wembley
Folkestone
Chichester
Eastbourne
Sutton

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Seattle to London City

Discover the top airline that operate flights from Seattle to London City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$962Average$1,000FlexibilityNo cancel feeOn-time77%

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